CVE-2026-0398

MEDIUM

Recursor - DoS/Info Disclosure

Title source: llm
STIX 2.1

Description

Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.

References (1)

Scores

CVSS v3 5.3
EPSS 0.0001
EPSS Percentile 0.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (4)
PowerDNS/Recursor 5.1.0 - 5.1.10
powerdns/recursor 5.1.0 - 5.1.10
PowerDNS/Recursor 5.2.0 - 5.2.8
PowerDNS/Recursor 5.3.0 - 5.3.5
Published Feb 09, 2026
Tracked Since Feb 18, 2026